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https://github.com/SEPPDROID/Digital-Research-Source-Code.git
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71 lines
1.8 KiB
Plaintext
71 lines
1.8 KiB
Plaintext
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;*****************************************************
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;*
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;* User Data Area - The User Data Area is an
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;* extension of the process descriptor but it
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;* travels with the user. It contains info
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;* that is needed only while in context.
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;*
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;* While in the operating system, The Extra
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;* Segment register points to the beginning
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;* of the User Data Area.
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;*
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;*****************************************************
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eseg
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org 0
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u_dparam rw 1 ; arg to dispatch
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; this area overlays part of BDOS
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u_dma_ofst rw 1 ; BDOS dma offset
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u_dma_seg rw 1 ; BDOS dma segment
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u_func rb 1 ; actual function number
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u_searchl rb 1 ; BDOS search length
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u_searcha rw 1 ; BDOS search FCB offset
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u_searchabase rw 1 ; BDOS search user's segment
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u_dcnt rw 1 ; BDOS directory count
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u_dblk rw 1 ; BDOS directory block #
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u_error_mode rb 1 ; BDOS error mode
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u_mult_cnt rb 1 ; BDOS multi-sector count
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u_df_password rb 8 ; BDOS default password
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u_pd_cnt rb 1 ; BDOS process count
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uda_ovl_len equ (offset $)-(offset u_dma_ofst)
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; end of overlay area
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u_in_int rb 1
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u_sp rw 1 ; save register area
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u_ss rw 1
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u_ax rw 1
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u_bx rw 1
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u_cx rw 1
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u_dx rw 1
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u_di rw 1
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u_si rw 1
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u_bp rw 1
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u_wrkseg rw 1 ; curr seg addr of buf
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u_retseg rw 1 ; usr ES return
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u_ds_sav rw 1 ;\
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u_stack_sp rw 1 ; usr stack segment
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u_stack_ss rw 1 ; usr stack pointer
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u_ivectors rw 10 ; save int 0-4
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u_es_sav rw 1 ; > Used during interrupts
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u_flag_sav rw 1 ;/
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u_initcs rw 1
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u_initds rw 1
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u_inites rw 1
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u_initss rw 1
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u_mpm_ip rw 1 ; MPM vec save
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u_mpm_cs rw 1
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u_debug_ip rw 1 ; RTS,Debug Vector Save
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u_debug_cs rw 1
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u_insys rb 1 ; # times through user_entry
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org (ulen-(3*word))
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u_rtm_ret rw 1
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u_sup_user_ret rw 1
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u_sup_cs rw 1
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